In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Measles alert for Melbourne Xmas shoppers

Christmas shoppers in Melbourne have been urged to watch out for measles symptoms after a woman diagnosed with the disease spent time in the city while infectious.

The woman, suspected of picking up the illness overseas, went shopping in Brunswick and the CBD while infectious on Wednesday and Thursday, Victoria's deputy chief health officer Dr Brett Sutton said.

It's the 12th measles case confirmed in Melbourne in recent months and people who visit areas where the woman shopped may be at risk of contracting measles, with symptoms possible to emerge through until December 18.